/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.mfi.controllers;

import com.mfi.models.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author User
 */
public class PriceAddServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            
            Customer customer = (Customer) request.getSession().getAttribute("account");
            if (customer == null || !customer.getType().equals("admin")) {
                response.sendRedirect("/");
            }
            
            
            request.setAttribute("title", "New Price");
            DBConnection connection = new DBConnection();
            ArrayList<Product> products = connection.getProductsWithOutPrices();
            ArrayList<Size> sizes = connection.getProductSizes();
            
            request.setAttribute("products", products);
            request.setAttribute("sizes", sizes);
            
            if (request.getParameter("add") != null) {
                
                int productID = Integer.parseInt(request.getParameter("product_id"));
                double price = Double.parseDouble(request.getParameter("price"));
                int size = request.getParameter("size") != null ? Integer.parseInt(request.getParameter("size")): 0;
                
                if (! connection.priceExist(productID, size)) {
                    String name = connection.addPrice(productID, size, price);
                    if (! name.equals("")) {
                        request.getSession().setAttribute("message", "Price added for "+ name +".");
                    } else {
                        request.getSession().setAttribute("error", "An error of a lifetime.");
                    }
                    response.sendRedirect("/manage/price");
                } else {
                    request.getSession().setAttribute("error", "A Price is already defined for that size.");
                    request.getRequestDispatcher("/WEB-INF/manage/price/add.jsp").forward(request, response);
                }
                
            } else {
                request.getRequestDispatcher("/WEB-INF/manage/price/add.jsp").forward(request, response);
            }
        } catch (NumberFormatException ex) {
            request.getSession().setAttribute("error", "Invalid value for price.");
            request.getRequestDispatcher("/WEB-INF/manage/price/add.jsp").forward(request, response);
        } catch (Exception ex) {
            request.getSession().setAttribute("error", ex.getMessage());
            request.getRequestDispatcher("/WEB-INF/manage/price/add.jsp").forward(request, response);
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
